Imaging device and imaging method

ABSTRACT

The imaging device displays an image under imaging at present and also past images picked up before it on the display means, thus at the time of continuous imaging, even when the next imaging is started immediately after end of imaging, an image after the framing process is displayed, for example, as an image picked up just prior, so that the imaging condition, for example, whether closing of eyes is caused in the image picked up already can be checked. Therefore, the next imaging can be started without waiting for the time required for the framing process after imaging, so that the imaging can be speeded up.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to an imaging device for picking up a face image of a person to be imaged to be attached to an ID card, for example, in an ID card preparing device for preparing a so-called ID card such as a driving license with a face image and various certificates and an imaging method.

[0003] 2. Description of Related Art

[0004] For example, in an ID card preparing device for preparing a so-called ID card such as a driving license with a face image (face picture) and various certificates, a face picture to be attached to a card is picked up by a CCD camera of an imaging device as an electronic image and composed with the contents (the name of the person, license number, employee number) of the card, thus an ID card is prepared by a printing device.

[0005] In this case, an imaging device has been developed that an image picked up by the imaging device is not printed in the imaged state, and an image process is performed that image data is processed so as to center the face position and unnecessary parts around the face are deleted, and the result is displayed, and when the result is judged to be suited to preparation of a card, and it is output to a printing device as a card preparation image.

[0006] Further, in recent years, in a portable imaging device which is referred to as a so-called digital camera, a plurality of picked-up images are listed on a display unit attached to the camera and the imaging result can be checked.

[0007] Furthermore, there is an ID card preparing device available that a standard-size face picture of a picked-up face image of an applicant is attached to a license preparation application (hereinafter referred to as an application), and the face picture on the application is picked up by a scanner or digital camera so as to take in as an electronic image, and the face picture and also the applicant intrinsic information (license number, employee number, etc.) recorded on the application are taken in.

[0008] In this case, there are a method (called a confirmation mode) for displaying the taken-in face picture on the display screen of the ID card preparing device and proceeding preparation by checking with the face picture and applicant intrinsic information for each applicant by an operator and a method (called an automatic mode) for continuously performing a preparation process automatically for a plurality of applications by the ID card preparing device and issuing a card preparation interruption command by an operator not via confirmation for each applicant by the operator only when defects are found during the continuous preparation.

[0009] However, as mentioned above, in an imaging device for picking up a face picture as an electronic image, a so-called framing process of adjusting the picked-up face image to a predetermined image size and moving the face to the center of the image frame is performed automatically, and the processing result is displayed, and the operator judges whether the face is properly positioned and the eyes are not closed. When the electronic image is judged to be suitable, the imaging device goes to imaging of the next person to be imaged and the image of the previous person to be imaged is sent to the printing device for card preparation. The framing process requires a fixed time, so that when the next imaging is to be carried out after confirmation of the processing result, a waiting time for the process is required and a limit is placed on continuous imaging.

[0010] Further, in the method for listing images of a plurality of imaged persons after imaging like a digital camera, a problem arises that the next imaging cannot be carried out during listing and when a picked-up image at the beginning person is questionable and re-imaging is required, the person to be imaged leaves already, so that he cannot be re-imaged.

[0011] Further, in the method for picking up a face picture of a picked-up face image of an applicant by a scanner as an electronic image, in the aforementioned confirmation mode and even in the automatic mode, a face image displayed on the display screen is a one only of the applicant under processing. So that for example, in a case of a taking-in fault of a face picture due to malfunctions of the scanner or a mismatch between a face image and applicant intrinsic information, there is a fault caused that during display of the information of the concerned applicant under processing, if an oversight such as misconfirmation by an operator is made, an IC card is prepared as it is.

SUMMARY OF THE INVENTION

[0012] An object of the present invention is to provide a imaging device and a imaging method, which enable the next imaging without waiting for the time required for the framing process after imaging and speed up the continuous imaging.

[0013] According to the embodiments of the present invention, an imaging device comprising a camera for picking up at least a face image of a person to be imaged, an image processor for performing a predetermined image process for an image picked up by the camera, a display unit having a plurality of image display areas, and a controller for controlling the display unit so as to display an image under imaging at present and also the past images picked up before it in the aforementioned plurality of image display areas respectively on the basis of output of the image processor is provided.

[0014] Further, according to the embodiments of the present invention, an imaging method comprising a step of picking up at least a face image of a person to be imaged, a step of performing a predetermined image process for the picked-up image, and a step of displaying an image under imaging at present and also the past images picked up before it respectively on the basis of the processed image is provided.

BRIEF DESCRIPTION OF THE DRAWINGS

[0015]FIG. 1 is a block diagram schematically showing the constitution of an imaging device relating to one embodiment of the present invention,

[0016]FIG. 2 is a drawing for explaining a display area of an image display unit of the imaging device of the aforementioned embodiment,

[0017]FIG. 3 is a flow chart for explaining a normal imaging process when a face image of a person to be imaged is to be directly picked up by the imaging device of the aforementioned embodiment,

[0018]FIG. 4 is a flow chart for explaining a re-imaging process when a face image of a person to be imaged is to be directly picked up by the imaging device of the aforementioned embodiment,

[0019]FIG. 5 is a flow chart for explaining a normal imaging process when a face picture of a person to be imaged is to be picked up by a imaging device of the second embodiment,

[0020]FIG. 6 is a flow chart for explaining a re-imaging process when a face picture of a person to be imaged is to be picked up by the imaging device of the second embodiment, and

[0021]FIG. 7 is a block diagram schematically showing the constitution of an imaging device relating to the third embodiment of the present invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The embodiments of the present invention will be explained in detail hereunder with reference to the accompanying drawings. FIG. 1 schematically shows the constitution of an imaging device relating to this embodiment. The imaging device is used, for example, for an ID card preparation device 11 for preparing an ID card such as a driving license with a face image. The imaging device has a camera 1 such as a video camera as an imaging means for directly picking up a face image of a person to be imaged or picking up a face picture that at least a face image of a person to be imaged has been picked up. The aforementioned imaging device has an image processor 2 as an imaging processing means for performing a so-called framing process such as adjusting a face image picked up by the camera 1 to a predetermined image size and moving the face to the center of the image frame. Further, the aforementioned imaging device has a first image buffer 3 for temporarily holding an image processed by the image processor 2, a second image buffer 4, a third image buffer 5, a display controller 6 as a control means for displaying each image in the image buffers 3 to 5 on an image display unit 7 which will be described later, the image display unit 7 as a display means having a plurality of image display areas. Furthermore, the aforementioned imaging device has an operating panel 8 for performing an imaging operation, a data register 9 for holding data such as an image number and name as identification information of a person to be imaged, and an imaging controller (CPU) 10 as a control means for managing the whole control.

[0023]FIG. 2 shows display areas of the image display unit 7. Namely, the image display unit 7 has a letter display area 12 for displaying letters such as “Ready”, an image display area 13 for displaying a face image under imaging at present, an image number display area 14 for displaying an image number relating to an image displayed on the image display area 13. Furthermore, the image display unit 7 has an image display area 15 for displaying a face image picked up just prior to an image displayed on the image display area 13, an image number display area 16 for displaying an image number relating to an image displayed on the image display area 15, an image display area 17 for displaying a face image picked up just prior to an image displayed on the image display area 15, an image number display area 18 for displaying an image number relating to an image displayed on the image display area 17, and a re-imaging request display area 19 for displaying an image number at the time of re-imaging.

[0024] In this example, the image display areas 15 and 17 for displaying face images picked up in the past are set smaller than the image display area 13 for displaying a face image under imaging at present.

[0025] The image display areas 13, 15, and 17 correspond to the first to third image buffers 3 to 5 shown in FIG. 1 respectively. Namely, in the image display area 13, the content of the first image buffer 3 is displayed, and in the image display area 15, the content of the second image buffer 4 is displayed, and in the image display area 17, the content of the third image buffer 5 is displayed.

[0026] Next, in this constitution, an imaging process when a face image of a person to be imaged is to be directly picked up will be explained by referring to the flow chart shown in FIG. 3. Firstly, when a person to be imaged is positioned in front of the camera 1, a moving image thereof is displayed in the image display area 13 of the display unit 7 via the camera 1. At this time, for example, the image number (generally the identification number of the person such as the license number or employee number) relating to the concerned person to be imaged is input by the operating panel 8 (Step S1). The input image number is displayed in the image number display area 14 of the image display unit 7, and whether the input image number is correct or not can be checked, and the input image number is stored in the data register 9.

[0027] When a first person is to be imaged, an operator looks at the moving picture displayed in the image display area 13 of the image display unit 7, confirms the moment the person to be imaged is in a most suitable pose position, and fetches a still image in this state by the camera 1. The fetched face image is sent to the image processor 2 and the display controller 6 and the face image from the camera 1 is displayed in the image display area 13 of the image display unit 7 as a still image.

[0028] The image processor 2 performs the framing process (Step S2) of making the still image of the face image sent from the camera 1 in a certain instance coincide with the predetermined image frame, thereby cutting peripheral unnecessary parts so as to move the face almost to the center of the image frame.

[0029] When the framing process is finished, the face image after processing is stored in the first image buffer 3. Then, the display controller 6 switches the display so as to display the face image in the first image buffer 3 in the image display area 13 of the image display unit 7 (Step S3). By doing this, the image display area 13 is switched to the display of the face image subjected to the framing process and the face position and closing of the eyes can be checked. At this time, the image number display area 14 is kept in the state that the image number input some time ago is displayed.

[0030] Then, the operator ascertains the face image displayed in the image display area 13 of the image display unit 7 (Step S4). When a fault, such as miss positioning or eye closed of the face, is found in the displayed face image in this confirmation, the operator carries out re-imaging (Step S5) and when no fault is found, he goes to imaging of the next person to be imaged. In this case, when the image decision key of the operating panel 8 is pressed first (Step S6), the face image displayed in the image display area 13 of the image display unit 7 is decided. Then, the aforementioned imaging controller 10 sends the decided face image from the display controller 6 and the image number corresponding to the face image from the data register 9 to a card preparation device 11 electrically connected to the imaging device and an ID card such as a driving license or a identification card is prepared (Step S7).

[0031] According to the pressing operation of the image decision key by the operator, the imaging controller 10 changes the imaging device to be ready to accept the image number. And then, the operator inputs the image number of the next person to be imaged, that is, the second person to be imaged (Step S8). By doing this, the image display area 13 of the image display unit 7 is switched again to a face image in a moving image state (sitting-down of the second person to be imaged at the position in front of the camera 1) from the camera 1 and the first face image in the first image buffer 3 is transferred to the second image buffer 4. The display controller 5 displays the face image in the second image buffer 4 in the image display area 15 of the image display unit 7 and displays the image number in the image number display area 16 (Step S9).

[0032] When the next person to be imaged (the second person to be imaged) is to be imaged, the operator looks at the moving picture displayed in the image display area 13 of the image display unit 7, confirms the moment the person to be imaged is in a most suitable pose position, and fetches a still image in this state by the camera 1. The image processor 2 performs the framing process for the face image sent from the camera 1 in the same way with the aforementioned (Step S10) and when the framing process is finished, the face image after processing is stored in the first image buffer 3. Then, the display controller 6 switches the display so as to display the face image in the first image buffer 3 in the image display area 13 of the image display unit 7 (Step S11). By doing this, the image display area 13 is switched again to the display of the face image subjected to the framing process and at that time, in the image number display area 14, the image number input some time ago is displayed.

[0033] Then, the operator ascertains the face image displayed in the image display area 13 of the image display unit 7 (Step S12). When a fault such as miss positioning or eye closed of the face image is found in the displayed face image in this confirmation, the operator carries out re-imaging (Step S13) and when no fault is found, the image decision key of the operating panel 8 is pressed (Step S14). Thus the face image displayed in the image display area 13 of the image display unit 7 is decided, and the decided face image and the corresponding image number are sent to a card preparation device 11, and the next ID card is prepared (Step S15).

[0034] According to the pressing operation of the image decision key by the operator, the imaging controller 10 changes the imaging device to be ready to accept the image number. When there is additionally the next person to be imaged, that is, the third person to be imaged (Step S16), he returns to Step S8 and inputs the image number of the next person to be imaged, that is, the third person to be imaged, thus the same process as the aforementioned is repeated.

[0035] When a plurality of persons to be imaged are to be imaged continuously, while the image processor 2 performs the image process among the aforementioned processes after the first face image is picked up, when the image number of the next person to be imaged is input, the display in the image display area 13 of the image display unit 7 is switched to the face image of the moving image from the camera 1. By doing this, while the face image of the next person to be imaged (the second person) is picked up, the first face image finishing the framing process is sent to the second image buffer 4 and displayed in the image display area 15 of the image display unit 7. Therefore, the face image after the framing process for the face image picked up just prior is displayed in the image display area 15 and the operator can check for closing of the eyes of the face image.

[0036] When the next person to be imaged (the third person) is additionally imaged in the same way, the face image of the second person to be imaged in the second image buffer 4 is sent to the third image buffer 5 and displayed in the image display area 17 of the image display unit 7 and the image number of the corresponding second person to be imaged is displayed in the image number display area 18 of the image display unit 7.

[0037] Whenever the imaging is carried out in this way, the picked-up image is sequentially transferred to the next image buffer, and the display position (image display area) is also changed, thus the face image of the previous person to be imaged is always displayed.

[0038] Next, in the processes shown in FIG. 3, the process when a fault is found in the face image picked up previously after the picked-up face image is decided will be explained by referring to the flow chart shown in FIG. 4. When the operator finds a fault such as closing of the eyes in the face image (the face image displayed in the image display area 15 or 17) picked up before the face image under imaging at present, he inputs the image number (displayed at the lower part of the concerned image display area) of the face image of the concerned fault from the operating panel 8 (Step S21).

[0039] Then, in the re-imaging request display area 19 of the image display unit 7, for example, the letters of “Re-Imaging Object” and the concerned image number (of the person to be imaged of a fault such as closing of eyes) are displayed, thus necessity of re-imaging is indicated clearly. At that time, the image display area 13 and the image number display area 14 of the image display unit 7 are switched to the display of the concerned person (the person to be imaged of a fault such as closing of eyes), and the image number display area 14 is switched to the display of the image number of the concerned person (the person to be imaged of a fault such as closing of eyes), and the image display area 13 displays the moving image fetched by the camera 1 before the concerned person (the person to be imaged of a fault such as closing of eyes) starts re-imaging.

[0040] Then, the person to be imaged (generally one or two persons) who is to be re-imaged is called back immediately and re-imaged by the camera 1 (Step S22). The re-picked-up face image is displayed in the image display area 13 of the image display unit 7 in a still image posed from the moving image state (Step S23) and then the face image is checked (Step S24). When a fault is found in the displayed face image in this confirmation, the operator carries out re-imaging again (Step S25) and when no fault is found, the image decision key of the operating panel 8 is pressed (Step S26), thus the re-picked-up face image displayed in the image display area 13 is decided, and the decided face image and the corresponding image number are sent to a card preparation device 11, and an ID card is prepared (Step S27).

[0041] According to the aforementioned embodiment as mentioned above, the operator does not need to wait for the next start of imaging until the framing process for the face image under imaging is finished and the interval of continuous imaging can be shortened.

[0042] Further, a plurality of images and image numbers corresponding to those images are displayed simultaneously on the same image display unit, so that misinput of image numbers can be checked. Furthermore, the image number and name of a person to be re-imaged are displayed on the same image display unit, so that omission of re-imaging is prevented.

[0043] Next, the card preparation process, for example, when a fault such as closing of eyes is found in a picked-up face image and re-imaging is required will be explained.

[0044] For example, when re-imaging of the face image displayed in the image display area 17 which is picked up two images before is required in FIG. 2, the operator designates the concerned image number from the operating panel 8 and performs a card preparation process stop operation.

[0045] By this operation, the imaging controller 10 stops the card preparation process for the concerned face image, makes the re-imaging request display area 19 of the image display unit 7 display the corresponding image number, displays it as an object requiring re-imaging, and registers it in the data register 9. In the re-imaging request display area 19, object data of a plurality of persons can be displayed sequentially and the corresponding plurality of object data is stored also in the data register 9.

[0046] In the above explanation, an image number is designated using the operating panel 8. However, the present invention is not limited to it and for example, a pointing device such as a mouse may be used so as to identify an image by moving the cursor or pointer on the screen of the image display unit 7 or a touch panel for designating an image by directly touching the screen of the corresponding image may be used.

[0047] Further, when information such as the name and address of a person to be imaged is stored in the data register 9 in relation to the image number (discrimination information of the person to be imaged), in the re-imaging request display area 19, not only the image number of a corresponding person to be re-imaged but also the name can be displayed.

[0048] Further, the buffers 3 to 5 for temporarily storing display images are explained so as to have a constitution of a storage unit independent of the data register 9. However, the present invention is not limited to it and face image data may be stored in the same storage device as the data register 9 as a file (JPEG(Joint Photographic Experts Group) or TIFF(Tagged Image File Format) in a general form).

[0049] When re-imaging is required, the operator calls the person to be imaged who finishes imaging and for that purpose, the image number and name of the corresponding person may be informed by broadcasting or displayed on a monitor (not shown in the drawing) installed in a waiting room so as to request care.

[0050] Further, until the person to be imaged requiring re-imaging arrives, the imaging of another person to be imaged can be continued in the same way as with the aforementioned imaging operation. In this case, the image display area 17 may display the face image of a new person to be imaged or when there are a plurality of image display areas, may display the face image of the new person to be imaged with the face image of the person to be imaged requiring re-imaging held.

[0051] In this case, when the person to be imaged requiring re-imaging arrives, the corresponding person to be imaged is selected from one or a plurality of objects displayed in the re-imaging request display area 19. As a selection means, the means such as the operating panel 8 already described, the pointing device, or the touch panel can be selectively used. When the corresponding person to be imaged is selected, the imaging controller 10 allows the image number display area 14 under imaging at present automatically to display the image number of the selected object to be re-imaged, allows the image display area 13 to display the face image of the person to be re-imaged positioned in front of the camera 1, and can carry out imaging again.

[0052] When the re-imaging is finished, the image number of the corresponding person displayed in the re-imaging request display area 19 is erased and the re-imaging object data stored in the data resister 9 is given an identifier of re-imaging end and moved to another area of the data register 9 or deleted from the corresponding storage area. By doing this, a series of re-imaging processes are finished.

[0053] In the above explanation, re-imaging is to image the objective person to be imaged again. However, the present invention is not limited to it. For example, as described in the prior art, a plurality of face images are picked up for a person to be imaged beforehand and in an imaging device structured so as to preserve them, a proper face image free of closing of eyes is selected from a plurality of stored face images in place of re-imaging and it is used for re-imaging.

[0054] As mentioned above, according to the aforementioned embodiment, a face image requiring re-imaging can be simply selected and the image number and name of the corresponding person to be re-imaged can be displayed, so that the process can be performed simply and speedily.

[0055] Further, when the corresponding person to be re-imaged is designated on the screen from the display of the object to be re-imaged, the image number necessary for imaging can be designated briefly and the input process can be performed simply and speedily.

[0056] Next, as the second embodiment, the imaging process when the face picture that the face image of a person to be imaged is picked up, for example, the fact picture of the applicant (the said person) attached to a license preparation application is to be picked up will be explained by referring to the flow chart shown in FIG. 5. Firstly, when an application to which the face picture of an applicant is attached is set in the camera 1 such as a line sensor, the face image which is fetched by picking up the face picture by the camera 1 is sent to the image processor 2 and the display controller 6 and the face image from the camera 1 is displayed in the image display area 13 of the image display unit 7.

[0057] At this time, for example, by the operating panel 8, the image number (generally, the identification number of the said person such as the license number or employee number) is input (Step S1). The input image number is displayed in the image number display area 14 of the image display unit 7 and whether the input image number is correct or not can be checked. In place of inputting the image number from the operating panel 8, by reading and recognizing the license number recorded in the concerned application beforehand by an optical letter reader, it can be input mechanically.

[0058] When the imaging of the first face picture is carried out, the image processor 2 performs the framing process of adjusting the face image sent from the camera 1 to a predetermined image frame and cutting unnecessary peripheral parts so as to put the face almost at the center of the image frame (Step S2). When the face picture is prepared in a predetermined size, the framing process may be omitted. However, when the brightness of the face picture of an applicant is whitish or dark, the image processor 2 performs a color gradation correction of making brighter or dimmer.

[0059] When the image process such as the framing process is finished by the image processor 2, the face image after processing is stored in the first image buffer 3. Then, the display controller 6 switches the display so as to display the face image in the first image buffer 3 in the image display area 13 of the image display unit 7 (Step S3). By doing this, the image display area 13 is switched to the display of the face image subjected to the image process such as the framing process and can check for a fault such as a displacement of the face or a noise line due to dust. At that time, in the image number display area 14, the image number input some time ago is displayed.

[0060] Here, the operator ascertains the face image displayed in the image display area 13 of the image display unit (Step S4). When a fault such as a displacement of the face or a noise line due to dust is found in the face of the displayed face image in this confirmation, the operator carries out re-imaging (Step S5) and when no fault is found, he goes to the next imaging. In this case, when the operator presses the image decision key from the operating panel 8 or instructs execution of the imaging process of the face picture of the next application (Step S6), the face image displayed in the image display area 13 of the image display unit 7 is decided, and the decided face image and the corresponding image number are sent to a card preparation device 11, and an ID card such as a driving license is prepared (Step S7).

[0061] Next, when the image number concerning the next applicant is input (Step S8), the image display area 13 of the image display unit 7 is switched to the face image from the camera 1 again and the face image in the first image buffer 3 is transferred to the second image buffer 4. The display controller displays the face image in the second image buffer 4 in the image display area 15 of the image display unit 7 and displays the image number in the image number display area 16 (Step S9).

[0062] When the next face picture is picked up, the image processor 2 performs the same framing process as the aforementioned for the face image sent from the camera 1 (Step S10). Also in this case, when the face picture is prepared in a predetermined size, the framing process may be omitted.

[0063] When the image process such as the framing process is finished, the face image after processing is stored in the first image buffer. Then, the display controller 6 switches the display so as to display the face image in the first image bugger 3 in the image display area 13 of the image display unit 7 (Step S11). By doing this, the image display area 13 is switched to the display of the face image subjected to the image process and at that time, in the image number display area 14, the image number input some time ago is displayed.

[0064] Here, the operator ascertains the face image displayed in the image display area 13 of the image display unit (Step S12). When an oversight of a fault such as a noise line due to dust is found in the face of the displayed face image in this confirmation, the operator carries out re-imaging (Step S13) and when no fault is found, he presses the image decision key from the AS operating panel 8 or instructs execution of the imaging process of the face picture of the next application (Step S14), thus the face image displayed in the image display area 13 of the image display unit 7 is decided. The decided face image and the corresponding image number are sent to a card preparation device 11 and the next ID card such is prepared (Step S15).

[0065] Next, when there is the next application additionally (Step S16), the operator returns to Step 8 and inputs the image number concerning the next applicant, thus the same process as the aforementioned is repeated.

[0066] In the case of continuous imaging, while the image processor 2 performs the image process among the aforementioned processes after the first face picture is picked up, when the image number of the next application (the second application) is input, the display in the image display area 13 of the image display unit 7 is switched to the face image from the camera 1. By doing this, while the face picture of the next applicant (the second applicant) is picked up, the first face image finishing the image process such as the framing process is sent to the second image buffer 4 and displayed in the image display area 15 of the image display unit 7. Therefore, the face image after the image process for the face image picked up just prior can be checked here.

[0067] When the face picture of the next application (the third application) is picked up in the same way, the face image in the second image buffer 4 is sent to the third image buffer 5 and displayed in the image display area 17 of the image display unit 7 and the corresponding image number is displayed in the image number display area 18 of the image display unit 7.

[0068] Whenever the imaging is carried out in this way, the picked-up image is sequentially transferred to the next image buffer, and the display position (image display area) is also changed, thus the face image of the face picture of the previous application is always displayed.

[0069] Next, in the processes shown in FIG. 5, the process when a fault is found in the face image picked up previously after the picked-up face image is decided will be explained by referring to the flow chart shown in FIG. 6. When a fault such as an imaging fault of a noise line due to dust in the camera 1 is found in the face image (the face image displayed in the image display area 15 or 17) picked up before the face image under imaging at present, the operator inputs the image number (displayed at the lower part of the concerned image display area) of the concerned face image from the operating panel 8 (Step S21).

[0070] Then, the displays of the image display area 13 under imaging at present and the image number display area 14 are switched to the concerned face image and image number and in the re-imaging request display area 19, for example, the letters of “Re-imaging Object” and the concerned image number are displayed, thus necessity of re-imaging is indicated clearly.

[0071] Then, the corresponding application to be re-imaged is selected and the face picture attached to the application is picked up (Step S22). The picked-up face image is displayed in the image display area 13 of the image display unit 7 (Step S23) and then the face image is checked (Step S24). When a fault is found in the displayed face image in this confirmation, the operator carries out re-imaging again (Step S25) and when no fault is found, the image decision key of the operating panel 8 is pressed (Step S26), thus the re-picked-up face image displayed in the image display area 13 is decided, and the decided face image and the corresponding image number are sent to a card preparation device 11, and an ID card is prepared (Step S27).

[0072] After a face image requiring re-imaging is selected, re-imaging is not carried out immediately, and the corresponding application is kept, and the re-imaging process can be performed in a batch later.

[0073] Next, the third embodiment will be explained.

[0074]FIG. 7 schematically shows the constitution of an imaging device relating to the third embodiment. A difference of the third embodiment from the first and second embodiments is that a media reader 22 as an store media reading means for reading and inputting a face image from a portable image store medium 21 where at least a face image of a person to be imaged which is picked up beforehand is stored and a record controller 24 as a record control means for storing the decided face image in a portable image store medium 23 are added and the others are the same as those of the first embodiment.

[0075] The portable image store medium 21 is, for example, a photo-electromagnetic disk called MO or an IC card or a memory card and at least a plurality of face images of a person to be imaged which have been picked up as electronic images (for example, still images) by a digital camera beforehand are stored in it together with the image number thereof. In this case, a plurality of kinds of face images may be stored for a person.

[0076] The media reader 22, when the image store medium 21 is set, reads and inputs a pair of face image and image number from the image store medium 21 to the image processor 2. The image processor 2 performs not only the image process of a face image picked up by the camera 1 but also the same image process as the aforementioned for a face image input from the media reader 22. The subsequent processes are the same as the aforementioned processes when a face image is input only by the camera 1.

[0077] The record controller 24, for example, when the face image is decided at Step 6 mentioned above, stores a pair of the decided face image and the image number thereof in the image store medium 23 which is set at this time. The image store medium 23 is, for example, a photo-electromagnetic disk called MO or an IC card or a memory card.

[0078] In this case, when the image store medium 23 storing a plurality of pairs of face images and image numbers as mentioned above is set in, for example, a card preparation device not electrically connected to the imaging device and reads a pair of face image and image number, the card preparation process can be performed later in a batch.

[0079] In the aforementioned embodiment, a case that a plurality of face images are displayed respectively in a plurality of image display areas provided in the same image display unit is explained. However, the present invention is not limited to it and a plurality of face images can be displayed in separate image display units respectively. By doing this, an image can be decided after the framing process at a location away from the imaging device.

[0080] Further, in the aforementioned embodiment, a video camera is used as the camera 1. However, the present invention is not limited to it and for example, by using a digital camera (electronic steal camera) for picking up a face image of a person to be imaged or a face picture as an electronic image or a scanner for picking up (reading) a face picture that a face image of a person to be imaged is picked up as an electronic image, the same process can be performed.

[0081] While the above provides a full and complete disclosure of the preferred embodiments of the present invention, various modifications, alternate constructions and equivalents may be employed without departing from the true spirit and scope of the invention. Therefore the above description and illustration should not be construed as limiting the scope of the invention, which is defined by the appended claims. 

What is claimed is:
 1. An imaging device comprising: a camera to pick up at least a face image of a person to be imaged; an image processor to perform a predetermined image process for an image picked up by said camera; a display unit having a plurality of image display areas; and a display controller to control said display unit so as to display an image under imaging at present and also past images picked up before it in said plurality of image display areas respectively on the basis of output of said image processor.
 2. An imaging device comprising: a camera to pick up at least a face image of a person to be imaged; an image processor to perform a predetermined image process for an image picked up by said camera; a display unit having a plurality of image display areas; a display controller to control said display unit so as to display an image under imaging at present and also past images picked up before it in said plurality of image display areas respectively on the basis of output of said image processor; and an image selector to select, when there is a faulty image in said plurality of past images displayed on said display unit, said image for re-imaging.
 3. An imaging device according to claim 1 or 2, wherein said predetermined image process performed by said image processor is a framing process.
 4. An imaging device according to claim 1 or 2, wherein said image display areas for displaying past images in said display unit are smaller than an image display area for displaying an image under imaging at present.
 5. An imaging device according to claim 1 or 2, wherein said display unit has a plurality of image display units.
 6. An imaging device according to claim 1 or 2, wherein said display controller controls said display means so as to display an image and also intrinsic discrimination information of said image on said display unit.
 7. An imaging device according to claim 1 or 2, wherein said camera picks up a face picture that at least a face image of a person to be imaged has been picked up.
 8. An imaging device according to claim 1 or 2, further comprising: a media reader for reading and inputting a face image from a portable image store medium where at least a face image of a person to be imaged, which is picked up beforehand, is stored, wherein said display controller performs a predetermined image process selectively for an image picked up by said camera or an image input by said media reader.
 9. An imaging device according to claim 1 or 2, further comprising: a record controller to store a face image to which said predetermined image process is performed by said display controller in a portable image store medium.
 10. An imaging device comprising: imaging means for picking up at least a face image of a person to be imaged; image processing means for performing a predetermined image process for an image picked up by said imaging means; display means having a plurality of image display areas; and control means for controlling said display means so as to display an image under imaging at present and also past images picked up before it in said plurality of image display areas respectively on the basis of output of said image processing means.
 11. An imaging device comprising: imaging means for picking up at least a face image of a person to be imaged; image processing means for performing a predetermined image process for an image picked up by said imaging means; display means having a plurality of image display areas; control means for controlling said display means so as to display an image under imaging at present and also a plurality of past images picked up before it in said plurality of image display areas respectively on the basis of output of said image processing means; and image selecting means for selecting, when there is a faulty image in said plurality of past images displayed on said display means, said image for re-imaging.
 12. An imaging device according to claim 10 or 11, wherein said predetermined image process performed by said image processing means is a framing process.
 13. An imaging device according to claim 10 or 11, wherein said image display areas for displaying past images in said display means are smaller than an image display area for displaying an image under imaging at present.
 14. An imaging device according to claim 10 or 11, wherein said display means has a plurality of image display units.
 15. An imaging device according to claim 10 or 11, wherein said control means controls said display means so as to display an image and also intrinsic discrimination information of said image on said display unit.
 16. An imaging device according to claim 10 or 11, wherein said imaging means picks up a face picture that at least a face image of a person to be imaged has been picked up.
 17. An imaging device according to claim 10 or 11, further comprising: store media reading means for reading and inputting a face image from a portable image store medium where at least a face image of a person to be imaged, which is picked up beforehand, is stored, wherein said display control means performs a predetermined image process selectively for an image picked up by said imaging means or an image input by said store media reading means.
 18. An imaging device according to claim 10 or 11, further comprising: record control means for storing a face image to which said predetermined image process is performed by said display control means in a portable image store medium.
 19. An imaging method comprising: picking up at least a face image of a person to be imaged, a step of performing a predetermined image process for said picked-up image; and displaying an image under imaging at present and also past images picked up before it respectively on the basis of said processed image.
 20. An imaging method comprising: picking up at least a face image of a person to be imaged, a step of performing a predetermined image process for said picked-up image; displaying an image under imaging at present and also plurality of past images picked up before it respectively on the basis of said processed image; and selecting, when there is a faulty image in said plurality of displayed past images, said image for re-imaging. 